How many assemble their engines

I have only replaced wear items - rings, bearings, cam, timing chain, maybe 4 of my engines 4,6,8 cyl, all Mopar over 25 years. Honed cylinders with an electric drill. Heads I take to a shop. I mark all pistons and connecting rod caps so it all goes back as it was. If assembling a new engine, there are many more things to check - piston fit, valve clearances, and such and more ways to screw up.

It would be nice to "blueprint" everything even on a re-ring, but my thought is since the rings are much smaller area than cylinder walls, that is where most wear occurs, and I only making it better w/ new rings anyway. If minimal ridge at the top (after removing carbon crud) and you can still see the honing marks (at least at the bottom), a simple re-hone should suffice. The Mopar book says "OK to get just another 10K miles out of an engine". That sounds like a nagging Nelly. I get 200K miles.

When I pull the rear main cap to change the seal, if the bearing looks good and I know its history, I leave the others as is. I have replaced them from the bottom with the crank in place. The rod bearings more commonly show wear, so I usually replaced. I never tried measuring axial play and such.